[gentoo-user] recovery of fstab

[gentoo-user] recovery of fstab

[James]

Well I have a gentoo system I'm trying to recover.
I've got it booted up via systemrescue.

I do not have a copy of the fstab, so what is the best
way to discover which partitions are /boot / and so on?

(brain dead tonight)....


I guesses but the / is blank?

df <snip>
/dev/sda2             61438696  51276944  10161752  84% /mnt/gentoo/boot
/dev/sda3             61438696  51276944  10161752  84% /mnt/gentoo


/mnt/gentoo/boot is populated (mounted correctly) but the /dev/sda3
which I'm guessing is / is empty ?

Been a while since I had to recover a system so referals to good 
docs are most welcome....

No to mention an automount capability with systemrescue?

James

Re: [gentoo-user] recovery of fstab

[Kevin Brandstatter]

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mount them and see whats there?
also, what order did you mount them in? it may make a difference


On Tue, Dec 11, 2012 at 2:48 PM, James <wireless@tampabay.rr.com> wrote:

> Well I have a gentoo system I'm trying to recover.
> I've got it booted up via systemrescue.
>
> I do not have a copy of the fstab, so what is the best
> way to discover which partitions are /boot / and so on?
>
> (brain dead tonight)....
>
>
> I guesses but the / is blank?
>
> df <snip>
> /dev/sda2             61438696  51276944  10161752  84% /mnt/gentoo/boot
> /dev/sda3             61438696  51276944  10161752  84% /mnt/gentoo
>
>
> /mnt/gentoo/boot is populated (mounted correctly) but the /dev/sda3
> which I'm guessing is / is empty ?
>
> Been a while since I had to recover a system so referals to good
> docs are most welcome....
>
> No to mention an automount capability with systemrescue?
>
> James
>
>
>
>
>
>

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Re: [gentoo-user] recovery of fstab

[Bruce Hill]

On Tue, Dec 11, 2012 at 10:48:03PM +0000, James wrote:
> 
> I guesses but the / is blank?
> 
> df <snip>
> /dev/sda2             61438696  51276944  10161752  84% /mnt/gentoo/boot
> /dev/sda3             61438696  51276944  10161752  84% /mnt/gentoo
> 
> 
> /mnt/gentoo/boot is populated (mounted correctly) but the /dev/sda3
> which I'm guessing is / is empty ?
> 
> Been a while since I had to recover a system so referals to good 
> docs are most welcome....
> 
> No to mention an automount capability with systemrescue?

Start by issuing "blkid" to determine what partitions are there. If you use -L
with mkfs.<whatever> then you should have a label, such as this:

peter ~ # blkid
/dev/sda1: LABEL="root" UUID="73362905-79dc-4512-9518-4c040963f80e" TYPE="xfs" 
/dev/sda2: LABEL="boot" UUID="2559cf58-63fa-44d3-ac82-94514d4d3769" TYPE="xfs" 
/dev/sda3: LABEL="home" UUID="8d5d17c1-7f99-4a49-b256-4d075306e42e" TYPE="xfs" 
/dev/sda5: LABEL="swap" UUID="636e7622-4a10-43d2-b976-d37cc15da7fc" TYPE="swap"

Then "mkdir /tmp/help" or whatever, and "mount /dev/<partition> /tmp/help/ and
when you get the old / located, mount it first later.

mount /dev/<old /> /mnt/gentoo
mount /dev/sda2    /mnt/gentoo/boot

It looks like sda2 and sda3 are identical, so you got something mounted wrong.

Bruce
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Re: [gentoo-user] recovery of fstab

[Adam Carter]

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> mount them and see whats there?
>

Also, check the partition table to see which one is swap, and what other
partitions exist.

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[gentoo-user] Re: recovery of fstab

[James]

Bruce Hill <daddy <at> happypenguincomputers.com> writes:


> Start by issuing "blkid" to determine what partitions are there. If you use -L
> with mkfs.<whatever> then you should have a label, such as this:

> peter ~ # blkid
> /dev/sda1: LABEL="root" UUID="73362905-79dc-4512-9518-4c040963f80e" TYPE="xfs" 

I used parted -l


> mount /dev/≤old /> /mnt/gentoo
> mount /dev/sda2    /mnt/gentoo/boot

I got it mounted now:

/dev/sda2  208820     80584    128236  39% /mnt/gentoo/boot
/dev/sda3  61438696  51276944  10161752  84% /mnt/gentoo/new

thx
James