Ufsrestore root filesystem from remote tape drive

If disk is replaced and I want to restore root filesystem, should I be able to access a remote tape drive to do this?
i.e when I do
boot cdrom -s, should I be able to access the nework? Or is that not posible with root filesystem installed?

Well, when you boot a machine into single user mode from a CD or DVD, it will not automatically configure the network, but you can do this by using normal ifconfig commands.
Before doing the restore you will have to create a new filesystem on the disk by runnings newfs and then mount it as /a or similar .
You can perform an ufsrestore from a remote machine by specifying the remote machines tape drive as the path to restore from, e.g.:
ufsrestore if <user>@<remote server>:<tape device>
for example, to do an interactive restore from a remote tape::
ufsrestore if admin@remote-server:/dev/rmt/1
.. one drawback with this is that ufsrestore probably rely on rsh to communicate with the remote server, so you might need to enable rsh and configure a .rhosts file for the user.
You can probably pipe the tape over ssh as well, with something such as:
ssh <user>@<remote-server> "dd if=/dev/rmt/1 ibs=1024" | (cd /a ; ufsrestore xf -)
.7/M.

Similar Messages

Remote tape drive

I have system taht only has a tape drive attached to the SMC. Can you use a remote tape drive under solaris 10? do you nfs the tape drive? how do you connect to a remote tape drive?

Well, when you boot a machine into single user mode from a CD or DVD, it will not automatically configure the network, but you can do this by using normal ifconfig commands.
Before doing the restore you will have to create a new filesystem on the disk by runnings newfs and then mount it as /a or similar .
You can perform an ufsrestore from a remote machine by specifying the remote machines tape drive as the path to restore from, e.g.:
ufsrestore if <user>@<remote server>:<tape device>
for example, to do an interactive restore from a remote tape::
ufsrestore if admin@remote-server:/dev/rmt/1
.. one drawback with this is that ufsrestore probably rely on rsh to communicate with the remote server, so you might need to enable rsh and configure a .rhosts file for the user.
You can probably pipe the tape over ssh as well, with something such as:
ssh <user>@<remote-server> "dd if=/dev/rmt/1 ibs=1024" | (cd /a ; ufsrestore xf -)
.7/M.

BRtools Two-Phase-Backup to remote disk and remote tape drive

Hello,
i want to two-phase-backup a SAP-System to a remote disk and from there to a tape drive.
Backup to remote disk works fine, but can i use brtools to write the backup-files from the remote machine to a tape drive that is connected to the remote machine?
I'm using SLES 10 on both machines.
I can't find anything on the SAP Documentation to this. It ist possible to backup to remote disk and to remote tape, but it is not clear that it works when in Phase 1 of the backup the files are written to a remote disk. It seems like i can only tell brtools to backup the files from a local disc to a remote tape-drive, is this right?
Thanks in advance for your help.
Regards
Phil

Hi Nirmal,
thanks for your answer.
But i can do disk to tape Backups, when i choose "Backup of Disk Backup" from BRtools, i see a list of all Backups i wrote to the local disk and can write them to remote tape by using pipe as backup device.
The only thing is, my Backups are stored on a remote disk, and from there it seems i have to write them to tape with cronjobs using a shell script. That's not my favourite solution, but it's ok.
Regards
Phil

Moving root filesystem to another hard drive

Hi everyone,
I've been using Arch Linux for a few months now and it is by far my favorite Linux distribution.
I currently have Arch on an old Pentium III, with a whopping 20 GB IDE hard drive.
I'm building a new computer, and want to use a larger 160 GB SATA hard drive, and I was wondering what is the best way that I can just transfer my entire root filesystem so I don't have to bother copying all the scripts, programs, etc.
Can I just tarball my root directory, partition my new hard drive, and use some other LiveCD to copy the root partition? I know this shouldn't be that difficult, because everything in the root partition is in /, unlike Windows, which has association problems with the registry.
Thanks!

I'd never want to lead anyone down the garden path without at least trying this myself so for the last hour or so I've done just as described above on an old computer I have that I play around with and a spare small 8 gb hard drive. I first tried copying the files over with thunar but that didn't work too well (froze up) probably due to trying to copy /sys and /proc--duh.
I tried again using midnight commander (to install do #pacman -S mc) and it worked perfectly. The /dev directory copied over just fine but don't try copying /proc and /sys. Just make empty directories so the system can put what it needs there. Also just make an empty /mnt directory and put your devices in later--otherwise I'm not sure what would happen if you were copying your /mnt/newroot to itself, but I'm sure it wouldn't be good.
I tried to just install grub on the slave with #grub-install /dev/sdb and it said it installed fine but when I switched the slave to master and disconnected the old master, grub wouldn't boot (probably because it was installed to /dev/sdb?) so I had to use the arch install disk to install grub. Then, much to my surprise--like I had any doubts--I rebooted and now I'm posting this with the newly copied Arch with xfce4.
It might not be a bad idea to backup any really important stuff but you are just copying and unless you do something silly, everything should work fine.
Last edited by bgc1954 (2008-03-11 23:13:58)

Restore Root Filesystem - Remote Tape?

Hi there,
Does anyone know of a way to restore a root fs from
a remote tape drive? The usual method seems to be to boot into single user mode off the cd but obviously you don't get the network this way.
Is the only viable way to have the tape connected directly?
Any ideas would be appreciated,
Thanks in advance.

The usual method seems to be to
boot into single user mode off the cd Yep.
but obviously you don't get the network this way. Why not?
I'm sure the (GUI) installer on the Solaris Installation CD will
configure the network interfaces and naming services first,
before the installation starts.
After that step has completed, you could start a terminal window
and there should be a usable network configuration, for restoring
from a remove tape drive.
With a rarpd and bootparam server on the same ethernet
segment, the configuration of the network interface should
even happen automatic.
And if all else fails, it shouldn't be too complicated to "ifconfig plumb" the network interface, manually configure the ip address,
then use the network:
ifconfig dnet0 plumb
ifconfig dnet0 inet 192.168.1.2 up
rsh -n 192.168.1.3 dd if=/dev/rmt/0 bs=32k | ufsrestore -xf -

How to use multiple tape drive from single client when I want to backup single filesystem?

Hello All.
I want to backup 1 filesystem using 4 tape drives for reducing backup time.
In case of symantec veritas netbackup, they can user "NEW_STREAM" for multi-streaming backup.
Please anybody let me know that how to do use multiple tape drive for single client.
1. Backup Source server : Linux (1 client)
2. Backup Soucre : /data1 (500GB)
-> Current directory structure doesn't have sub directory under /data1, just files present under /data1
If direcotry struceture has a sub-direcotry like( /data1/aaa, /data1/bbb ), Is it availble to use multiple tape drives?
3. Tape Drive with OSB : LTO6 * 4 drives
Thank you.

You would have to create a different dataset for each sub-folder. If you only have files at the top level folder then even the NEW_STREAM option couldn't be used to split the job.
Organise it into folders and then create datasets in a client folder such as :
/usr/local/oracle/backup/admin/config/dataset/Linux/data1_aaa
/usr/local/oracle/backup/admin/config/dataset/Linux/data1_bbb
Then in the schedule you just specify the Linux folder. In each dataset you list the hostname and the folder name, such as :
include host Linux
include path /data1/aaa
Now it will create a new job for each dataset and therefore each folder.
Thanks
Rich

How to use multiple tape drive for single filesystem on single client.

Hello All.
I want to backup single filesystem with multiple tape drive.
Incase of Symantec veritas netbackup "NEW_STREAM" for multi-stream backup.
Backup client has a single backup filesystem like /data1 directory with 4 LTO6 drives.
/data1 directory doesn't have a sub-direcotry, just present a files.
If /data1 directory has a sub-directory like /data1/aaa, /data1/bbb, /data1/ccc , Is it possible to use multiple drives?
Please anybody answer the questions.
Thanks advanced.

See how to use multiple tape drive from single client when I want to backup single filesystem?

Ufsdump to remote AIX tape drive

I am trying to ufsdump to a remote tape drive that is on an AIX box.
I have configured the /.rhosts file on the AIX server
I have created a symbolic link /etc/rmt to point to /usr/sbin/rmt on the AIX box
I am running the following command on the sun box
ufsdump 0cuf AIXBOX:/dev/rmt0.1 /dev/dsk/c1t0d0s0
but I get this :
DUMP: Date of this level 0 dump: Thu Feb 18 15:42:17 2010
DUMP: Date of last level 0 dump: the epoch
DUMP: Dumping /dev/rdsk/c1t0d0s0 (SUN10:/) to AIXBOX:/dev/rmt0.1
DUMP: Mapping (Pass I) [regular files]
DUMP: Mapping (Pass II) [directories]
DUMP: Writing 63 Kilobyte records
DUMP: Estimated 12017946 blocks (5868.14MB).
DUMP: Lost connection to remote host.
DUMP: Bad return code from dump: 1
DUMP: Date of this level 0 dump: Thu Feb 18 15:42:28 2010
DUMP: Date of last level 0 dump: the epoch
Is it possible to get this to work?

If i interpreted the code to ufsdump correctly, it will attempt to execute the command /etc/rmt on the remote host over a shell (port 514) connection.
The rmt supports the remote magtape protocol, so ufsdump creates a datastream and sends it over the network to rmt, which is responsible for sending it to a tape device.
Is there an /etc/rmt binary in AIX? In Solaris there is a /etc/rmt, even if its just a link to /usr/sbin/rmt, if there isn't a /etc/rmt, check if there is an rmt binary elsewhere on the system, and symlink it.
If there is a /etc/rmt, two other things to check would be that the shell connection is working (by running something like 'rsh AIXBOX echo hej') and double check the path to the tape driver on the AIX host.
Hope this helps, i am not that experienced in remote taping nor AIX.
.7/M.

HT4796 I would like to transfer many pictures from my pc remote hard drive to my new mac remote hard drive without them clogging up and maybe crashing my computer. Can this be done? I have over a TB and my mac remote hard drive is 4TB

Does anyone know how to transfer about 1 TB of pictures from my old pc remote hard drive to my new 4 TB remote harddrive on my Mac. I would like them to go directly from remote hard drive to remote hard drive without them clogging up my computer.
Thanks

Connect both drives to the Mac and drag from the old to the new.
I have no idea if it will "clog" up your Mac. It will likely take quite a while (6 + hours on USB 2.0).
You might want to break it up in batches, or run it overnight.

Restoring the filesystems of the tape

Hi,
I am trying to build a sun machine off the image of another sun machine. I have created a backup of filesystems on the source machine of a tape that was created via ufsdump commands. Now I have to restore those filesystems to the destination system. The destination system partitions have enough space to accomodate the filesystems from the source system. The destination system already has an OS on it and can be wiped off.
Do I have to boot the destination system in a single-user mode with cdrom in order to do a ufsrestore of all the filesystems from the tape? If yes, how about non-root filesystems like /usr, /tmp, /var etc. Can they be restored in multi-user mode w/o bringing the system down. Any feedback in regard to this is appreciated.
Many Thanks,
ps

Did you figure out how to do that ? If not let me know and I will send you a procedure for that.

Flarcreate to a Remote tape device

Have any of you ever tried to do a flarcreate to a remote tape drive ?
I use the following command: flarcreate ��n archive1 ��X /flarexclude.txt ��c ��S ��t remoteserver:/dev/rmt/0ubn
But the result is ERROR: Unable to work archive
Any assistance will be appreciated.

Hi
Antonious
Follow the links
http://help.sap.com/saphelp_nw04s/helpdata/en/43/d5ebc2c9ed3ab3e10000000a422035/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/05/9364bc66f74849968da259be8ca430/frameset.htm
Regards
Bhaskar

CentOS based linux VM running on Hyper-v : Checking root filesystem fails when kernel switches having old PV(para virtualised driver based on 2.6.32 linux kernel) to new PV(which is equivalent to linux integration component 3.4)

hi all,
I am running a CentOS base VM on top of Hyper-V server. I upgraded PV drivers of Hyper-V in linux kernel 2.6.32 in order to support
Windows Server 2012, then i am hitting below issue on Windows Server 2008 when kernel switches from old PV(which is 2.6.32 based) to new PV(which is equivalent to linux integration component 3.4).i
am hitting following filesystem check error messages :
Setting hostname hostname:
Checking root filesystem
fsck.ext3/dev/hda2:
The superblock could not be read or does not describe correct ext2 filesystem. If the device is valid and it really contains an ext2
filesystem(and not swap or ufs or something else),then the superblock is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>
: No such file or directory while trying to open /dev/hda2
*** An error occurred during the filesystem check.
*** Dropping you to a shell; the system will reboot
*** When you leave the shell.
Also, when I go to the repair filesystem mode. I found out the strange behaviour when i ran those command :
(Repair filesytem) 1 # mount
/dev/hda2 on / type ext3 (rw)
proc on /proc type proc (rw)
(Repair filesystem) 1# cat /etc/mtab
/dev/hda2 /ext3 rw 0 0
proc /proc proc rw 0 0
(Repair filesystem) 1# df
Filesystem 1K-blocks used Available Use% Mountedon
/dev/hda2 4%
I think for all above command there should be /dev/sda2 instead of /dev/hda2.
Also my fstab , and fdisk -l looks like ok for me.
(Repair filesystem) 1# cat /etc/fstab
LABEL=/ / ext3 defaults 1 1
LABEL=/boot /boot ext3 defaults 1 2
devpts /dev/pts devpts gid=5,mode=620 0 0
tmpfs /dev/shm tmpfs defaults 0 0
proc /proc proc defaults 0 0
sysfs /sys sysfs defaults 0 0
LABEL=swap-xvda3 swap swap defults 0 0
(Repair filesystem) 1# fdisk -l
Device Boot Start End Block Id System
/dev/sda1 * 1 49 98535 83 Linux
Partition 1 does not end with cylinder boundary.
/dev/sda2 49 19197 39062500 83 Linux
Partition 2 does not end with cylinder boundary.
/dev/sda3 ......
Partition 3 does not ......
/dev/sda4 ......
Partition 4 does not end ....
(Repair filesystem) 1# e2label /dev/sda1
/boot
(Repair filesystem) 1# e2label /dev/sda2
(Repair fielsystem) 1# ls /dev/sd*
/dev/sda /dev/sda1 /dev/sda2 /dev/sda3 /dev/sda4
(Repair filesyatem) 1# ls /dev/hd*
ls: /dev/hd*: No such file or directory
Kindly suggest any configuration of windows server or kernel configs missing or how to resolve this issues
Many many thanks for your reply.
thanks & Regards,
Ujjwal

i am not able to understand duplicate UUID and from where it is picking /dev/hda* ?
~
VVM:>>
VVM:>> Output of dmesg | grep ata contain substring "Hyper-V" ?
VVM:>>
it doesn't contain "Hyper-V" or ata related message and the output doesn't change with boot parameter reserve=0x1f0, 0x8
~~
~~~~
==
output of dmesg related "ata" Ubuntu v13.04 mini.iso ( with boot parameter reserve=0x1f0, 0x8)
==
see later ( in "good situation" example )
~~
===
Disable legacy ATA driver by adding the following to kernel command line in /boot/grub/menu.lst:
reserve=0x1f0, 0x8
. (This option reserves this I/O region and prevents ata_piix from loading).
==
See output of dmesg related "ata" Ubuntu v13.04 mini.iso ( with boot parameter reserve=0x1f0, 0x8) :
~~
[ 0.176027]
libata version 3.00 loaded.
[ 0.713319]
ata_piix 0000:00:07.1: version 2.13
[ 0.713397]
ata_piix 0000:00:07.1: device not available (can't reserve [io 0x0000-0x0007])
[ 0.713404]
ata_piix: probe of 0000:00:07.1 failed with error -22
[ 0.713474]
pata_acpi 0000:00:07.1: device not available (can't reserve [io 0x0000-0x0007])
[ 0.713479]
pata_acpi: probe of 0000:00:07.1 failed with error -22
~~
As result: 1) IDE disk handled by hv_storvsc , but 2) no CD-ROM device
==
~ # blkid
/dev/sda1: LABEL="ARCH_BOOT" UUID="009c2043-4bl7-4f95-al4d-fb8951f95b5d" TYPE="ext2"
==
~~
VVM>>
VVM>>Q1: Output of blkid contain duplicate UUID ?
VVM>>
-> blkid contains duplicate UUID, below are the output.
~~
This situation is classic problem "
use hv_storvsc instead of ata_piix to handle the IDE disks devices ( but not for the DVD-ROM / CD-ROM device handling)
~~
For compare, see example "good situation":
See output of dmesg related "ata" Ubuntu v13.04 mini.iso ( without boot parameter reserve=0x1f0, 0x8) :
~~~~
~ # dmesg |grep ata
[ 0.167224] libata version 3.00 loaded.
[ 0.703109] ata_piix 0000:00:07.1: version 2.13
[ 0.703267] ata_piix 0000:00:07.1: Hyper-V Virtual Machine detected, ATA device ignore set
[ 0.703339] ata_piix 0000:00:07.1: setting latency timer to 64
[ 0.704968] scsi0 : ata_piix
[ 0.705713] scsi1 : ata_piix
[ 0.706191] atal: PATA max UDMA/33 cmd 0xlf0 ctl 0x3f6 bmdma 0xffa0 irq 14
[ 0.706194] ata2: PATA max UDMA/33 cmd 0x170 ctl 0x376 bmdma 0xffa8 irq 15
[ 0.868844] atal.00: host indicates ignore ATA devices, ignored
[ 0.869142] ata2.00: ATAPI: Virtual CD, , max MWDMA2
[ 0.871736] ata2.00: configured for MWDMA2
~~~~
===
~ # uname -a
Linux ubuntu 3.7.0-7-generic #15-Ubuntu SUP Sat Dec 15 14:13:08 UTC 2012 x86_64 GNU/Linux
~ # lsmod
hv_netvsc 22769 0
hv_storvsc 17496 3
hv_utils 13569 0
hv_vmbus 34432 3 hv_netvsc,hv_storvsc,hv_utils
~ # blkid
/dev/sr0: LABEL=”CDROM" TYPE="iso9660”
/dev/sda1: LABEL="ARCH_BOOT" UUID="009c2043-4bl7-4f95-al4d-fb8951f95b5d" TYPE="ext2"
===
( only CD-ROM and 1( one) IDE disk connected to ATA)
~~
regarding ata_piix.c patch . . .
As far as i understand this patch , it ignore ATA devices on Hyper-V when PV drivers(CONFIG_HYPERV_STORAGE=y) are enabled.
~~
Yes:
ignore ATA-HDD ( but not ignore ATA CD-ROM ) on Hyper-V when PV drivers(CONFIG_HYPERV_STORAGE=y) are enabled.
~
this patches need be backported:
cd006086fa5d ata_piix: defer disks to the Hyper-V drivers by default
and its prerequisite
db63a4c8115a libata: add a host flag to ignore detected ATA devices
~
~~
P.S.
Are You do this:
==
As temporary solution, increase on 1-2 Gb size all .vhd connected to IDE bus
( but not increase size of partitions inside disks)
==
? fsck write message a-la: "no error in file system" ?
2013-01-24 Answer by Ujjwal Kumar: As a temporary solution looks ok for me, but [ VVM: need true solution ]
P.P.S.
To Ujjwal Kumar :
My e-mail:
ZZZZZZZZZZZZZZZ
please send e-mail to me, in reply I send to You patches to ata_piix ( and *.c before and after patches) , etc.
} on 2013-01-14 -- DoNe

Remote SQL backup file to tape drive

Hi ,
I have a requirement on SQL database backup (.sql file)
Environment :
MS SQL server is in Remote . I have a Tape Drive (HP Ultrium
5 LTO )( External SAS port)). I Want to Schedule my backups from SQL server to Tape Drive . This tape drive Physically connected to windows server 2008 r2 machine & Sql server 2008 is running in windows server 2008 r2 in remote . Both Servers
are communicating . Please suggest is there
any software's to full fill this .
Is there any procedure to full fill my requirement .
Kindly update the solution
Thanks in Advance ,
Sathyamnk Mail Id : [email protected]
[email protected]

Hi ,
I have a requirement on SQL database backup (.sql file)
Environment :
MS SQL server is in Remote . I have a Tape Drive (HP Ultrium 5 LTO )( External SAS port)). I Want to Schedule my backups from SQL server
to Tape Drive . This tape drive Physically connect to windows server 2008 r2 machine & Sql server 2008 is running in windows server 2008 r2 in remote . Please suggest is there any software's to full fill this
Is there any procedure to full fill my requirement .
Kindly update the solution
Thanks in Advance ,
Sathyamnk Mail Id : [email protected]
[email protected]

Tape drive disappears from OS

We're running SLES 10 SP3/OES2 SP2 on a Dell server with an IBM LTO-4 tape drive and Arkeia Network Backup software. Sometimes our backups fail because the tape drive, /dev/st0, has disappeared from the system. The server may run for weeks or just days before it happens - we can't find any pattern. The only solution we've found is to reboot the server. Then /dev/st0 is visible again, and the tape drive works fine.
I've called Dell about this multiple times over the last two years. They've replaced the tape drive, and we install the latest firmwares as they become available. Dell doesn't seem to know what to do any more, figuring it's an OS issue.
Any suggestions on how to (1) troubleshoot the problem, (2) prevent it, or (3) fix the problem when it occurs without needing to reboot?

jcw av wrote:
>
> We're running SLES 10 SP3/OES2 SP2 on a Dell server with an IBM LTO-4
> tape drive and Arkeia Network Backup software. Sometimes our backups
> fail because the tape drive, /dev/st0, has disappeared from the system.
> The server may run for weeks or just days before it happens - we can't
> find any pattern. The only solution we've found is to reboot the
> server. Then /dev/st0 is visible again, and the tape drive works
> fine.
>
> I've called Dell about this multiple times over the last two years.
> They've replaced the tape drive, and we install the latest firmwares as
> they become available. Dell doesn't seem to know what to do any more,
> figuring it's an OS issue.
>
> Any suggestions on how to (1) troubleshoot the problem, (2) prevent it,
> or (3) fix the problem when it occurs without needing to reboot?
>
>
Are you sure it is not an issue at the controller level. I would have looked
there right away. What kind of controller is it using. I went through a
similar issue and finally popped a different brand controller in the system
and used it and never saw the issue again. Also cables can go bad as well.
Believe I have seen that one many times.
Good Luck

Error after installing tape drive

Hi,
I am a newbie to Solaris, I have a SunFire V120 box, i was trying to install a tape drive(HP SureStore DAT24), i did the install in this manner.
# rm -rf /etc/path_to_inst
# init 6
later at the "ok" prompt i gave "boot -ar" after doing that it asked me various options i accepted the default values, when it asked for rebuilding the /etc/path_to_inst file i said "y", but later everything went wrong.
This is the output,
Sun Fire V120 (UltraSPARC-IIe 548MHz), No Keyboard
OpenBoot 4.0, 512 MB memory installed, Serial #51581741.
Ethernet address 0:3:ba:13:13:2d, Host ID: 8313132d.
Executing last command: boot -ar
Boot device: /pci@1f,0/pci@1/scsi@8/disk@0,0 File and args: -ar
Enter filename [kernel/sparcv9/unix]:
Enter default directory for modules [/platform/SUNW,UltraAX-i2/kernel /platform/
sun4u/kernel /kernel /usr/kernel]:
Name of system file [etc/system]:
SunOS Release 5.8 Version Generic_108528-15 64-bit
Copyright 1983-2001 Sun Microsystems, Inc. All rights reserved.
|
The /etc/path_to_inst on your system does not exist or is empty.
Do you want to rebuild this file [n]? y
root filesystem type [ufs]:
Enter physical name of root device
[/pci@1f,0/pci@1/scsi@8/disk@0,0:a]:
WARNING: forceload of misc/md_trans failed
WARNING: forceload of misc/md_raid failed
WARNING: forceload of misc/md_hotspares failed
WARNING: forceload of misc/md_sp failed
WARNING: forceload of misc/md_stripe failed
WARNING: forceload of misc/md_mirror failed
configuring IPv4 interfaces: eri0.
Hostname: aks
mount: /dev/md/dsk/d1 is not this fstype.
/sbin/rcS: /etc/dfs/sharetab: cannot create
failed to open /etc/coreadm.confsyseventd: Unable to open daemon lock file '/etc
/sysevent/syseventd_lock': 'Read-only file system'Configuring /dev and /devices
devfsadm: mkdir failed for /dev 0x1ed: Read-only file system
devfsadm: open failed for /dev/.devfsadm_dev.lock: Read-only file system
Configuring the /dev directory (compatibility devices)
/etc/rcS.d/S50devfsadm: /tmp/sock2path.57: cannot create
The system is coming up. Please wait.
/sbin/mountall: /tmp/sh800: cannot create
rm: Unable to remove directory /tmp: Read-only file system
mkdir: Failed to make directory "/tmp"; Read-only file system
chown: /tmp: Read-only file system
10/5/2005 9:56:42 GMT LOM time reference
/etc/rc2.d/S69inet: /tmp/ifconfig.100: cannot create
grep: can't open /tmp/ifconfig.100
/etc/rc2.d/S69inet: test: argument expected
starting rpc services: rpcbind done.
Setting netmask of eri0 to 255.255.255.0
Setting default IPv4 interface for multicast: add net 224.0/4: gateway aks
syslog service starting.
dumpadm: failed to open /etc/dumpadm.conf: Read-only file system
cron could not unlink FIFO: No such file or directory
cron aborted: cannot create fifo queue
! cannot create fifo queue Wed Oct 5 04:56:45 2005
! ******* CRON ABORTED ******** Wed Oct 5 04:56:45 2005
/dev/bd.off: Read-only file system
/etc/rc2.d/S90solaris: /tmp/fgd.207: cannot create
cat: cannot open /tmp/fgd.207
Error -- cannot open error log /.FGDLog
volume management starting.
/etc/rc3.d/S15nfs.server: /tmp/sharetab.232: cannot create
touch: /tmp/sharetab.232 cannot create
mv: cannot access /tmp/sharetab.232
share_nfs: /home/weblogic/SIMecho/logs: No such file or directory
share_nfs: /local/data2/home/weblogic/SIMecho/out: No such file or directory
chmod: WARNING: can't change /etc/dfs/sharetab
The system is ready.
aks console login:
INIT: Command is respawning too rapidly. Check for possible errors.
id: sc "/usr/lib/saf/sac -t 300"
aks console login: aks console login: root
Password:
/etc/logindevperm: /dev/mouse: Read-only file system
/etc/logindevperm: /dev/kbd: Read-only file system
Last login: Wed Oct 5 04:20:28 on console
Oct 5 04:57:46 aks login: ROOT LOGIN /dev/console
root @ aks::/> vi /etc/system
"/etc/system" [Read only] 109 lines, 2687 characters
After doing some google i found that nothing is wrong i just need to comment some lines in the /etc/system file. But still i wasn't able to bacause the system is mounted in read only mode.
Thanking you in advance.
Regards,
Rajendra Rait.

I have exactly the same problem after running an fsck to clear corrupt files.
Is there a problem with mirrored disks and using boot -ar to rebuild path_to_inst?
The basic problem is that the root filesystem is coming up as read only
i.e.
The /etc/path_to_inst on your system does not exist or is empty.
Do you want to rebuild this file [n]? y
root filesystem type [ufs]:
Enter physical name of root device
[/pci@1f,0/pci@1/scsi@8/disk@0,0:a]: /pci@1f,0/pci@1/scsi@8/disk@1,0:a
WARNING: forceload of misc/md_trans failed
WARNING: forceload of misc/md_raid failed
WARNING: forceload of misc/md_hotspares failed
WARNING: forceload of misc/md_sp failed
WARNING: forceload of misc/md_stripe failed
WARNING: forceload of misc/md_mirror failed
configuring IPv4 interfaces: eri0 lo0:1.
Hostname: plant
mount: /dev/md/dsk/d0 is not this fstype.
failed to open /etc/coreadm.confsyseventd: Unable to open daemon lock file '/etc/sysevent/syseventd_lock': 'Read-only file system'Configuring /dev and /devices
devfsadm: mkdir failed for /dev 0x1ed: Read-only file system
devfsadm: open failed for /dev/.devfsadm_dev.lock: Read-only file system
Configuring the /dev directory (compatibility devices)
/etc/rcS.d/S50devfsadm: /tmp/sock2path.52: cannot create
The system is coming up. Please wait.
/sbin/mountall: /tmp/sh730: cannot create
Any help would be gratefully received as I want to avoid rebuilding the server from scratch!
Thanks

Ufsrestore root filesystem from remote tape drive

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