Hi!
I recently bought a new hard drive and used LVM to add it to my system.
Unfortunately the disk just crashed. This is not too bad since I have a
backup of the most important files.
But currently my system can't work correctly as the crashed disk
belonged to the vg that contains /usr, /home, /opt, /var and /tmp. (It
also contains a /docs which I have a backup of, so it doesn't matter if
I lose it.) The system still boots though and I can login as root.
The vg is on pv0, pv1 and pv2 - It is pv2 that crashed.
I am kind of a newbie so I don't know how to proceed, but I believe it
should be possible to resize the vg to only use the first 2 pvs.
From what I see on my /etc/lvm/backup/vg file (see below), it seems
that only the 'docs' lv uses pv2, I think it is a good sign, right?
So far, after googling a bit I tried vgscan -P and vgchange -Pay and
tried to mount /dev/vg/usr but it didn't work with the following error:
EXT3-fs: INFO: recovery required on readonly filesystem. / write access
unavailable, cannot proceed.
Any help is greatly appreciated! Thanks a lot.
BoD
Here is my /etc/lvm/backup/vg:
==================
# Generated by LVM2 version 2.02.36 (2008-04-29): Sat Nov 15 17:19:28 2008
contents = "Text Format Volume Group"
version = 1
description = "Created *after* executing 'lvextend /dev/vg/docs /dev/sda'"
creation_host = "server" # Linux server 2.6.25-gentoo-r7 #3 SMP Mon
Nov 10 01:14:23 CET 2008 i686
creation_time = 1226765968 # Sat Nov 15 17:19:28 2008
vg {
id = "PH2tSI-13yC-X0oh-vn11-a0n6-1ho5-6UiCs9"
seqno = 15
status = ["RESIZEABLE", "READ", "WRITE"]
extent_size = 8192 # 4 Megabytes
max_lv = 0
max_pv = 0
physical_volumes {
pv0 {
id = "eGnP16-zOOk-CR6Y-sDib-27kL-T83J-d6oRp9"
device = "/dev/hda4" # Hint only
status = ["ALLOCATABLE"]
dev_size = 223656930 # 106.648 Gigabytes
pe_start = 384
pe_count = 27301 # 106.645 Gigabytes
}
pv1 {
id = "6DnMKc-Rpb2-Rq52-xsXY-3Nrw-ZJoZ-YAwf1C"
device = "/dev/hdb1" # Hint only
status = ["ALLOCATABLE"]
dev_size = 240107427 # 114.492 Gigabytes
pe_start = 384
pe_count = 29309 # 114.488 Gigabytes
}
pv2 {
id = "9RSjlM-bZ8W-8cC0-s122-bYTo-jyci-DZOSpM"
device = "/dev/sda" # Hint only
status = ["ALLOCATABLE"]
dev_size = 1953525168 # 931.513 Gigabytes
pe_start = 384
pe_count = 238467 # 931.512 Gigabytes
}
}
logical_volumes {
usr {
id = "0CY7Ox-x0UG-LVXl-jhEk-IrJG-ig8l-ELPI3C"
status = ["READ", "WRITE", "VISIBLE"]
segment_count = 2
segment1 {
start_extent = 0
extent_count = 2560 # 10 Gigabytes
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv1", 0
]
}
segment2 {
start_extent = 2560
extent_count = 1280 # 5 Gigabytes
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv1", 4352
]
}
}
home {
id = "C26mF3-f25l-K3ct-NgKQ-A6Mb-OgOn-ZtqlAt"
status = ["READ", "WRITE", "VISIBLE"]
segment_count = 1
segment1 {
start_extent = 0
extent_count = 1280 # 5 Gigabytes
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv0", 0
]
}
}
opt {
id = "9xQxKJ-KrpD-iDny-6SAh-dFyY-4URm-0qAH6l"
status = ["READ", "WRITE", "VISIBLE"]
segment_count = 1
segment1 {
start_extent = 0
extent_count = 1280 # 5 Gigabytes
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv1", 2560
]
}
}
var {
id = "1Vt3kw-xlHL-Rh66-cYoQ-f5QP-5D9f-Inan21"
status = ["READ", "WRITE", "VISIBLE"]
segment_count = 1
segment1 {
start_extent = 0
extent_count = 2560 # 10 Gigabytes
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv0", 1280
]
}
}
tmp {
id = "QcoIcV-tSUP-iJ9J-MjZE-cI0n-8fEG-20Gb08"
status = ["READ", "WRITE", "VISIBLE"]
segment_count = 1
segment1 {
start_extent = 0
extent_count = 512 # 2 Gigabytes
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv1", 3840
]
}
}
docs {
id = "5xHiv1-uzBg-kd8c-jdJQ-QuOa-eFei-w4hUbl"
status = ["READ", "WRITE", "VISIBLE"]
segment_count = 3
segment1 {
start_extent = 0
extent_count = 23677 # 92.4883 Gigabytes
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv1", 5632
]
}
segment2 {
start_extent = 23677
extent_count = 23461 # 91.6445 Gigabytes
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv0", 3840
]
}
segment3 {
start_extent = 47138
extent_count = 238467 # 931.512 Gigabytes
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv2", 0
]
}
}
}
}
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