[ILUG] harddisk swap
cian at medialabeurope.org
Wed Apr 28 15:59:32 IST 2004
So earlier on today I was ssh'ing into a machine, just checking logs etc. and
I went to edit a file and got back an error about the filesystem being
read-only. True enough /proc/mounts showed
/dev/root / ext3 ro 00
Some more looking in the logs turned up BAD news. Lots of IDE errors from
about 4am when lots of cron stuff was happening, followed by the root
filesystem being remounted ro, presumably trying to save itself.
I made the mistake of trying a remote reboot and the machine never came back.
Anyway, I'm heading out to the machine tomorrow (it's about 20 minutes down
the road) to replace the HD and hopefully recover the data from the old one.
I'll be swapping in a nice SCSI disk+controller for the crapped-out old IDE
disk. Basically I wanted to check with the ILUG crowd if I was properly
prepared and going about this the right way:
1) I've partitioned the SCSI disk in advance and done "mkfs.ext3 -j" on all
partions except the swap. Will this work or will I have do something like
dd if=/dev/hda of=/dev/sda bs=512 count=1
for the MBR before I can go and partition /dev/sda?
2) I'm planning on booting from a Fire CD mounting /dev/hda partitions
read-only and using cp to copy them to the /dev/sda partitions. Sound
Any other gotchas I should be ready for?
More information about the ILUG