The finder window for an external USB hard disk suddenly started separating files by time (today, yesterday, etc.) and stopped allowing me to change column width, order, etc. Also the header bar shifted to flat white from gray.
The finder window for an external USB hard disk suddenly started separating files by time (today, yesterday, etc.) and stopped allowing me to change column width, order, etc. Also the header bar shifted to flat white from gray.
All was normal until the icon for the disk stopped showing up on the desktop when I would plug it in. I rebooted the computer, and the disk icon now shows up but this new look to the finder window started as a result. The hard disk does not have this problem when I use it on another Mac running Snow leopard. Also, two other external hard disks that I use on this computer running lion 7.4 still have the normal header bars with columns that can be reordered, etc.
I have tried looking in preferences and other places but have not seen this discussed.
Well duh - I finally figured out that somehow in the View options for the hard drive, the "arrange by" option had been changed to "by date" from "none". Not sure how that happened, I had never used the "view options" menu tem before. Changing "arrange by" back to "none" gets the gray column headers and the collapsible folder icons back.
Similar Messages
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I'm trying to use Migration Assistant to update my new Mountain Lion iMac from an external USB hard disk drive. I told it to look for a drive, yet it is constantly saying that it is "looking for other computers". It doesn't find the external drive ... it just endlessly looks for other computers. Why is it looking for other computers at all, when I told it not to?
Wow, the wording in Migration Assistant is misleading. I've never used it before, so I thought I would try to copy my files from the external drive ... my old iMac died, but I managed to get everything I need off it, using the 'cp' command in single-user mode. So I guess I'll just have to manually copy the files from the external drive to the new machine. I was hoping that Migration Assistant might help somehow, but obviously not.
Thanks for the quick reply! -
Arch: Install to & run from External USB Hard Disk Drive (HDD)
I wanted to play with ArchLinux 2009.02, but replacing the existing Debian-Lenny on the laptop's HDD wasn't an option. So I experimented with installing Arch on an external USB Hard Disk Drive.
I have tried to make this "newbie-friendly", so I hope the more experienced will forgive the detail.
Materials:
Three year old Dell Inspiron 6000
CPU = 2.0 GHz Pentium
RAM = 2.0 GB
Internal HDD = 80 GB
Internal CD/DVD R/RW
External USB HDD = Freecom FHD-2 Pro 80 GB
Archlinux 2009.02 install CD
Steps to install:
1. I put the Archlinux install CD in the drive and connected the external 80 GB HDD in the USB port.
2. When the Dell laptop was booted, I pressed F2 to enter the BIOS setup. I edited the boot sequence to the following:
Internal CD/DVD
External USB device
Internal HDD
On the Dell, you can also press F12 to select the preferred boot device for that boot.
3. I started the laptop and the Archlinux installation menu came up and I proceeded with installation following the "Official Arch Linux Install Guide" and the "Beginners Guide".
4. Used km to change to UK keyboard layout and then began the installer script (/arch/setup). I was installing from the core CD so I skipped the network steps.
5. HDD preparation.
This was fairly straightforward with two cautions:
(a) Make very sure that the external HDD (sdb) is selected for the operations.
(b) Remember to set the Bootable Flag for the first (/) partition on the HDD.
I chose 20 GB for /, 2 GB for swap and the remainder for /home.
6. The package selection and installation was fairly straightforward.
7. Configuration of System
This was section was straightforward with one warning:
USB had to be added to the HOOKS in the /etc/mkinitcpio.conf file!
I found this to be essential for my external USB HDD to function as a bootable device. Otherwise I got the same sorts of errors relating to unrecognisable file system types that other people have reported in the forum.
The relevant line from the end of the edited /etc/mkinitcpio.conf file is below:
HOOKS="base udev autodetect pata scsi sata usb filesystems"
8. Installation of GRUB was the other point where caution and/or correction was necessary.
When it asked where GRUB should be installed, I had to select sdb (my external USB HDD) and not any of the particular partitions on sdb. If the root partition sdb1 was selected then the laptop won't boot from the external USB HDD.
The GRUB /boot/grub/menu.lst as written by the installation routine specifies hd(1,0) which doesn't work when you try to reboot from the external USB HDD. When you boot Arch from the external USB HDD, as far as Arch is concerned - at that point in time - the external USB HDD is the first drive in the system. To fix this:
(a) When the Arch boot menu comes up, press e to edit the grub entries.
(b) Change the first line to hd(0,0)
(c) To the end of the kernel line add rootdelay=8
(d) Press b to boot the system with these temporary corrections.
(e) Once your Arch system has booted, edit the /boot/grub/menu.lst to make the above changes permanent.
The relevant portion of my /boot/grub/menu.lst looks like the following:
# (0) Arch Linux
title Arch Linux
root (hd0,0)
kernel /boot/vmlinuz26 root=/dev/disk/by-uuid/... ro rootdelay=8
initrd /boot/kernel26.img
# (1) Arch Linux
title Arch Linux Fallback
root (hd0,0)
kernel /boot/vmlinuz26 root=/dev/disk/by-uuid/... ro rootdelay=8
initrd /boot/kernel26-fallback.img
9. The laptop happily and consistently boots Arch Linux from the external USB HDD when it's plugged in before startup/booting.
Running Arch from the external USB HDD seems as quick as running Debian from the internal HDD.
So if there is a performance penalty associated with using an external USB HDD, my wife and I haven't noticed.
In summary, the three essential points to address during installation to an external USB HDD are:
Remember to set the bootable flag for the first partition.
Add USB to the HOOKS for /etc/mkinitcpio.conf file.
Correct the /etc/grub/menu.lst file.
I hope this is helpful.
TedHi Rookie,
As you say, it is worth remembering the rootfstype= option for the kernel line just in case someone still has problems with GRUB after making all the other changes.
I was working with the most recent Arch 2009.2 release.
I only got messages about unrecognisable file system type when I tried booting with the "stock" or "as-installed" GRUB (before I edited /boot/grub/menu.lst). After editing /boot/grub/menu.lst to identify the drive correctly and add rootdelay, GRUB was able to do the rest and everything worked OK without any error messages.
Best wishes,
Ted -
Trouble connecting to external USB hard disk through PC
I've had AirPort Extreme 802.11n for a few months which I use to connect to a printer and to share a USB hard disk between my eMac and my thinkpad. For a while everything was working beautifully. The disk showed up on my eMac desktop and in my Windows XP file explorer. Then recently the USB disk stopped connecting at all to either computer even after trying the old remedy of connecting directly to my Mac, dismounting it, and reconnecting. Then today a bunch of updates for the AirPort Utility became available and after updating to 5.3.1 on my eMac the disk shows up on my eMac again. But on my PC here's the situation: the disk appears in the AirPort Utility for Windows (5.3.1) but I can't find it in Windows file explorer. I tried the alternative ways of connecting shown here:
http://docs.info.apple.com/article.html?artnum=306119
but no dice.Uhmmmmmm, you meant to say the Macbook Air DOES have (2) USB PORTS
GENEDI, yes, you can connect a 2.5" USB external HD to your Mac AIR, ...... done it a 1000 times -
Transfering data from a Windows XP/PC external USB hard drive to MBP.
I recently purchased a 15.4" Macbook Pro and it is my first Mac computer. I have a USB 2.0 external hard drive currently attached to my Windows XP based PC and I am hoping to a.) get the information currently on this drive on to my Macbook Pro and b.) use this drive--even if reformatting is necessary--as an external device on my Macbook Pro.
Both computers are connected to the same wireless network (via a Linksys Wireless-G hub) and both have USB 2.0 ports--but my PC has no firewire ports.
I am simply wondering: what is the best way to get the information from the external harddrive to my Macbook Pro? The MBP didn't seem to "recognize" the drive initially when I plugged it into the laptop's USB port.oh yes, you are unfamiliar with windows sharing. no prob.
First off you have to set up a network on your windows PC. I don't know how savvy you are with your PC, but basically you have run the network setup wizard. You might also have to set up a protocol in your network properties (usually IPX will do the trick). If you click on the windows start button and see a network button near the my computer button you are most of the way there.
Once you have your computer set up for networking you need to enable sharing, which you also do in the network properties (there is a checkbox somewhere).
Lastly, you need to specify which folder(s) you want to share! Just right click on the drive (D: for example) in my computer and click 'sharing'. Naviagate the menus and enable sharing.
Your MBP is already set up for talking to windows networks, so just go to finder and click on networks, pick the workgroup that you specified when you set up your network on your windows machine and click ok. A connection to your external drive should appear. Now you can drag and drop all the files you want.
Sorry if this is confusing, but I can't really rememeber all this stuff off the top of my head.
If you want more clarification, search for 'how to share in windows XP' or something like that.
Good luck -
Unable to boot MBA from external USB hard disk
I'm trying to boot an Air from an external hard disk, but the partition is not being recognized when I boot up and hold down the OPTION key. I've tried making bootable clones with Disk Utility (Restore), Carbon Copy Cloner and SuperDuper and none of the three pop up as an available boot partition. The external drive was properly partitioned as a GUID disk. Any ideas what the problem could be?
Did you also format the drive Mac OS X Extended, Journaled? As follows:
Extended Hard Drive Preparation
1. Open Disk Utility in your Utilities folder. If you need to reformat your startup volume, then you must boot from your OS X Installer Disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Installer menu (Utilities menu for Tiger or Leopard.)
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. SMART info will not be reported on external drives. Otherwise, click on the Partition tab in the DU main window.
3. Click on the Options button, set the partition scheme to GUID (only required for Intel Macs) then click on the OK button. Set the number of partitions from the dropdown menu (use 1 partition unless you wish to make more.) Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the volume(s) mount on the Desktop.
4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
5. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, check the button for Zero Data and click on OK to return to the Erase window.
6. Click on the Erase button. The format process can take up to several hours depending upon the drive size.
Steps 4-6 are optional but should be used on a drive that has never been formatted before, if the format type is not Mac OS Extended, if the partition scheme has been changed, or if a different operating system (not OS X) has been installed on the drive. -
External USB hard disk fails to boot
I installed Arch Linux on an external USB Lacie 1 TB Hard Disk. I followed instructions on WiKi: "install from exisiting linux", method 2, since I already have Linux installed
on the internal HDD of my laptop (dual boot with Windows, also with Grub as bootloader).
Problem: The external HDD stalls during boot right after the "Welcome to Grub!" - message. I can only hard-reset my laptop from there.
The external HDD has msdos Partition Table. It is recognized by BIOS just fine, since I can choose to boot from it. It has following (very simple) partition setup:
[root@arch-laptop chris]# fdisk -l /dev/sdb
Disk /dev/sdb: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x000c9610
Device Boot Start End Blocks Id System
/dev/sdb1 * 2048 40962047 20480000 83 Linux
So there's just the root partition, no boot or home partition defined. Grub installed to the external HDD with no errors.
Here's the grub.cfg auto-generated, without anything adapted. The UUID of the external HDD /dev/sdb1 is correct.
[root@arch-laptop grub]# cat grub.cfg
# DO NOT EDIT THIS FILE
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
### BEGIN /etc/grub.d/00_header ###
insmod part_gpt
insmod part_msdos
if [ -s $prefix/grubenv ]; then
load_env
fi
if [ "${next_entry}" ] ; then
set default="${next_entry}"
set next_entry=
save_env next_entry
set boot_once=true
else
set default="0"
fi
if [ x"${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
else
menuentry_id_option=""
fi
export menuentry_id_option
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi
function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
function load_video {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
if [ x$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 5fe1d28c-2640-4b5c-b98b-75d147479348
else
search --no-floppy --fs-uuid --set=root 5fe1d28c-2640-4b5c-b98b-75d147479348
fi
font="/usr/share/grub/unicode.pf2"
fi
if loadfont $font ; then
set gfxmode=auto
load_video
insmod gfxterm
set locale_dir=$prefix/locale
set lang=en_US
insmod gettext
fi
terminal_input console
terminal_output gfxterm
if [ x$feature_timeout_style = xy ] ; then
set timeout_style=menu
set timeout=5
# Fallback normal timeout code in case the timeout_style feature is
# unavailable.
else
set timeout=5
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/10_archlinux ###
menuentry "Arch Linux pkg-linux kernel" --class arch-linux --class arch --class gnu-linux --class gnu --class os {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
fi
set gfxpayload=keep
insmod ext2
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 5fe1d28c-2640-4b5c-b98b-75d147479348
else
search --no-floppy --fs-uuid --set=root 5fe1d28c-2640-4b5c-b98b-75d147479348
fi
echo 'Loading Arch Linux pkg-linux kernel ...'
linux /boot/vmlinuz-linux root=UUID=5fe1d28c-2640-4b5c-b98b-75d147479348 rw quiet
echo 'Loading Arch Linux pkg-linux kernel initramfs ...'
initrd /boot/initramfs-linux.img
menuentry "Arch Linux pkg-linux kernel (fallback initramfs)" --class arch-linux --class arch --class gnu-linux --class gnu --class os {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
fi
set gfxpayload=keep
insmod ext2
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 5fe1d28c-2640-4b5c-b98b-75d147479348
else
search --no-floppy --fs-uuid --set=root 5fe1d28c-2640-4b5c-b98b-75d147479348
fi
echo 'Loading Arch Linux pkg-linux kernel ...'
linux /boot/vmlinuz-linux root=UUID=5fe1d28c-2640-4b5c-b98b-75d147479348 rw quiet
echo 'Loading Arch Linux pkg-linux kernel fallback initramfs ...'
initrd /boot/initramfs-linux-fallback.img
### END /etc/grub.d/10_archlinux ###
### BEGIN /etc/grub.d/10_linux ###
menuentry 'Arch Linux' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-5fe1d28c-2640-4b5c-b98b-75d147479348' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 5fe1d28c-2640-4b5c-b98b-75d147479348
else
search --no-floppy --fs-uuid --set=root 5fe1d28c-2640-4b5c-b98b-75d147479348
fi
echo 'Loading Linux linux ...'
linux /boot/vmlinuz-linux root=UUID=5fe1d28c-2640-4b5c-b98b-75d147479348 rw quiet
echo 'Loading initial ramdisk ...'
initrd /boot/initramfs-linux.img
submenu 'Advanced options for Arch Linux' $menuentry_id_option 'gnulinux-advanced-5fe1d28c-2640-4b5c-b98b-75d147479348' {
menuentry 'Arch Linux, with Linux linux' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-advanced-5fe1d28c-2640-4b5c-b98b-75d147479348' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 5fe1d28c-2640-4b5c-b98b-75d147479348
else
search --no-floppy --fs-uuid --set=root 5fe1d28c-2640-4b5c-b98b-75d147479348
fi
echo 'Loading Linux linux ...'
linux /boot/vmlinuz-linux root=UUID=5fe1d28c-2640-4b5c-b98b-75d147479348 rw quiet
echo 'Loading initial ramdisk ...'
initrd /boot/initramfs-linux.img
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###
### BEGIN /etc/grub.d/41_custom ###
if [ -f ${config_directory}/custom.cfg ]; then
source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
### BEGIN /etc/grub.d/60_memtest86+ ###
### END /etc/grub.d/60_memtest86+ ###
the internal HDD (/dev/sda) also has GRUB installed, without any problems, with a graphical console menu.
GRUB version is 2.02
laptop: dv6-6b41ed
Legacy BIOS (no EFI / UEFI).
Any ideas on how to solve / troubleshoot this?
Last edited by christopher72 (2014-04-21 15:05:21)Any hooks in particular? I don't know which hook to add other then the 'blocks' hook, which is there already:
HOOKS="base udev autodetect modconf block filesystems keyboard fsck"
Also, I don't think that could be the problem since loading the initramfs image takes place after choosing something from the Grub Menu. That menu never appears, I just get "welcome to grub!" with a blinking cursor underneath.
I did add "insmod usbms" in grub.cfg, but that didn't change anything.
What strikes me as odd is that in grub.cfg, the disk is referred to as "hd1", where I think it could just as well be "hd0" if that's the first hard disk the BIOS boots from. But I'm not sure if that really matters since the search is done with the UUID.
Another thing I tested earlier: I dd 'd the Arch Live image to the external usb HDD, and then it boots fine... -
Access external USB hard disk drive with REISERFS Linux filesystem.
I recently bought second-hand an older MBP Pro (2006 model) with Tiger installed, which I use as a desktop system at home and I would like to be able to connect an external IOMEGA 500 GB hard disk drive to it and have read/write access to its contents (mostly video / picture / music files). I spent a while searching on the Internet for solutions - nothing usefule came up. Does anyone in here have any ideas on how to do this? Is it possible at all after all?
P.S.: Apart from this older MBP Pro, I also have a newer model (bought in early 2008) with Leopard installed - I wouldn't mind finding some solution on my problem on that OS instead...Hi,
The two ways I can see to possibly do it are to network the Linux machine & Drive, then use Samba to access it.
By using the Mac OS X Virtual File System (VFS) capability and writing kernel extensions, you can add support for other file systems. Examples of file systems that are not currently supported in Mac OS X but that you may wish to add to the system include the Andrew file system (AFS) and the Reiser file system (ReiserFS). If you want to support a new volume format or networking protocol, you’ll need to write a file-system kernel extension.
http://developer.apple.com/documentation/Darwin/Conceptual/KernelProgramming/Fil esystem/chapter12_section1.html -
Help with using an external USB hard drive to start up a powerbook?!
Hello ppl of the apple support communities,
My uncle recently gave me an Apple Powerbook G4 with a bad internal hard drive and the Mac OS X installation disk that came with the machine! In my country Greece to repair this powerbook costs about 140$ that i dont have! I need your help! I connected the external USB disk to 2 USB ports,and started the Mac OS X 9.2 installation! I went to Utilities Menu checked the disk erase tab and at Volume Format i used ''Mac OS Extended(journaled)'' and checked the box ''Install Mac OS 9 Driver'' and then click Erase. However the box for the ''Install MAc OS 9 disk drivers remained checked.(Seems like they cant be installed!)Then when i go to the partition tab ad at ''Options...'' i cant find this GUID thing and i can only choose between ''Apple Partition Scheme'' and ''PC Partition Scheme''!!GUID partition scheme is required for Intel-based systems. The Powerbook would use the Apple partition scheme.
While it's probably what was provided with the Powerbook, I wouldn't bother with OS X 9.2. If you plan to use it to connect to the internet, there are so many advances that have taken place since 9.2, especially in handling web sites and security. And some web sites rely on newer versions of plug-ins, like Flash, to name one. You should also expect that watching online video's will be difficult, as even the last Powerbooks have difficulties with some video's.
Good luck with your project! -
External USB Hard Drive disconnects during large file transfers.
I have a Western Digital 2TB USB Hard Drive that Ive been using perfectly for a couple of years on my MacBook Pro. A couple of months ago I bought a 27inch iMac and started using it as my main computer. So I had that hard drive connected to my iMac.
I started to notice that during large transfers (be it many files or 1 big one), usually into the Gigs, I suddenly got a warning message saying that the Hard Drive was inappropriately disconnected. It doesnt appear in Disk Utility so I have to manually connect and disconnect the drive in order for it to show up again on the iMac. I tested it again on my MacBook and the same thing happened.
Another problem:
Sometimes it will dissappear from the iMac without a warning message, it just doesnt show up. (Usually after long periods of inactivity). I then have to manually disconnect and connect for it to show up.
So what do you think? Is my Hard Drive Dying?I've been having similar problems with Lion on both external USB2 drive docks and more recently a Mediasonic 4 bay Firewire RAID drive. It was suggested that powersaving mode shut these down but changing that didn't completely solve the problem. I'm returning the Mediasonic for a replacement but suspect that it is something in the OS that is causing it.
If the replaced drive still causes the problem, I'll do a rebuilt of the system, eliminating apps that were migrated over, even though the system is only 5 months old. If anyone has solved similar issues, please let me know as well. Thanks. -
'Lombard' PowerBook won't see external USB hard disk?
I connect an external hard disk to a 'Lombard' PowerBook (Mac OS X 10.3.9) via USB and get the message "You have inserted a disk containing no volumes that Mac OS X can read." I connect the same disk to my MacBook Pro via USB and it mounts fine. I've run DiskWarrior on it, but it still won't mount on the 'Lombard'. Other USB devices work fine, e.g. USB flash drive. I know the 'Lombard' won't boot from an external USB disk, but will it also simply not read it at all?
HandyMac,
You are caught between a rock and a hard place. MacOS X 10.3.9 or earlier cannot mount/read a volume that has been partitioned using the GUID Partition Scheme adopted by the Intel Macs. PowerPC Macs use the older Apple Partition Scheme. You can reformat the USB HD on your Lombard (a PowerPC) using the Apple Partition Scheme and it will also mount/read/write on the MacBook Pro. However, if you are also using this HD as a bootable volume for the MBP, the HD must remain in the GUID Partition Scheme. The tech article below is discussing FireWire Target Disk Mode but I assume the same restriction applies also to removable media. I would confirm this on either the MBP Discussions or the Tiger Discussions.
http://docs.info.apple.com/article.html?artnum=303118
http://docs.info.apple.com/article.html?artnum=303220 -
Backup to external USB hard disk
I've been trying to use rsync to backup my internal HD to an external USB one. I'm attempting to backup everything from /Users/ on down. There are two users on this G5, and attempts to access the other user's directories/files are being blocked with "permission denied" message.
Hoping root could reign with access privileges to all users, I've used "sudo -u root crontab -e" to set up a crontab entry to invoke a file containing the actual backup command itself:
"rsync -av --exclude-from=/Volumes/'Macintosh HD'/Users/jdorin/SysBackupExclude --progress /Volumes/'Macintosh HD'/Users /Volumes/MacBack > echo -n"
The SysBackupExclude file contains just:
/Macintosh HD/Users/user1/Library/Caches
/Macintosh HD/Users/user1/.Trash/Caches
/Macintosh HD/Users/user2/Library/Caches
/Macintosh HD/Users/user2/.Trash/Caches
I'm "user1," and my files are getting backed up. But the emailed backup status report tells me "permission denied" for each directory under "user2," as:
rsync: opendir "/Volumes/Macintosh HD/Users/user2/.Trash" failed: Permission denied (13)
rsync: opendir "/Volumes/Macintosh HD/Users/user2/Desktop" failed: Permission denied (13)
How can I backup all users on my Mac?I never unplug the external harddrive, and the error message comes up only occassionaly upon startup. Maybe the USB connection gets disrupted enough to cause the computer to see it as disconnected and then reconnected while the iMac is powered.
-
WRT160NL: Automatic spin-down of external USB hard disks?
Hello,
do external hard disks automatically spin down after a period with no access/use when connected with the USB port of the WRT160NL?In reference to your post could you please let me know that when you say "spin down" do you mean that does the hard drive goes into sleep mode when it is not in use?
Did you try to connect another hard drive and check whether it is the same case or not? -
What is the effective resolution for imported artwork/photos? I have to downsize a huge file.
Change the pixel size of the images in a graphics application to match the pixel size of the presentation set in
Inspector > Document > Slide Size then bring them into Keynote.
I use Stunt Software's Downsize specifically for this as it can batch process hundreds of files extremely fast: Downsize -
External USB hard drive suddenly disconnecting
Over the last two days, I've noticed that my external drive (a Freecom 500GB) has just randomly disconnected at various points. I haven't removed the cables, or even jolted them. An error message appears saying that the drive has been disconnected without being ejected, and that this may cause me to lose data. But I'm not disconnecting it manually!
Is this likely to be a fault with the drive or the Mac?If the drive is bus powered and you have no AC adapter for it or it has no provision for connecting one, you will need to buy an AC-powered USB hub to connect to the Powerbook, and plug the drive into the hub. The drive isn't getting enough power from the USB bus at some times, and when the power is inadequate, the drive drops off the OS's radar even though it remains connected.
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