Rescuing Linux

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===initramfs can't mount root===

An unpleasant situation is one where initramfs fails to mount the root partition, in which case you will be dumped to the dreaded BusyBox or klibc shells (ash, as in "a shitty shell"). A day when one sees BusyBox is never a good day. If the machine is remote, you are fucked without server-style out of band access (e.g. Dell iDRAC, BMC, KVM-over-IP). Otherwise, if you have a valid root partition somewhere, you can manually continue the boot by mounting that partition to <tt>/mnt/root</tt> and running <tt>exec switch_root /mnt/root /sbin/init</tt>. Usually this means you've specified the wrong root partition in your bootloader; check the <tt>root</tt> command line option to the kernel.

An unpleasant situation is one where initramfs fails to mount the root partition, in which case you will be dumped to the dreaded BusyBox or klibc shells (ash, as in "a shitty shell"). A day when one sees BusyBox is never a good day. If the machine is remote, you are fucked without server-style out of band access (e.g. Dell iDRAC, BMC, KVM-over-IP). Otherwise, if you have a valid root partition somewhere, you can manually continue the boot by mounting that partition to <tt>/mnt/root</tt> and running <tt>exec switch_root /mnt/root /sbin/init</tt> or its non-union equivalent. Usually this means you've specified the wrong root partition in your bootloader; check the <tt>root</tt> command line option to the kernel.

==fsck on boot==

Rescuing Linux: Difference between revisions

Dank (talk | contribs)

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 ===initramfs can't mount root===
-An unpleasant situation is one where initramfs fails to mount the root partition, in which case you will be dumped to the dreaded BusyBox or klibc shells (ash, as in "a shitty shell"). A day when one sees BusyBox is never a good day. If the machine is remote, you are fucked without server-style out of band access (e.g. Dell iDRAC, BMC, KVM-over-IP). Otherwise, if you have a valid root partition somewhere, you can manually continue the boot by mounting that partition to <tt>/mnt/root</tt> and running <tt>exec switch_root /mnt/root /sbin/init</tt>. Usually this means you've specified the wrong root partition in your bootloader; check the <tt>root</tt> command line option to the kernel.
+An unpleasant situation is one where initramfs fails to mount the root partition, in which case you will be dumped to the dreaded BusyBox or klibc shells (ash, as in "a shitty shell"). A day when one sees BusyBox is never a good day. If the machine is remote, you are fucked without server-style out of band access (e.g. Dell iDRAC, BMC, KVM-over-IP). Otherwise, if you have a valid root partition somewhere, you can manually continue the boot by mounting that partition to <tt>/mnt/root</tt> and running <tt>exec switch_root /mnt/root /sbin/init</tt> or its non-union equivalent. Usually this means you've specified the wrong root partition in your bootloader; check the <tt>root</tt> command line option to the kernel.
 ==fsck on boot==