How do I drop to shell from rescue CD???
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From: Ohhhh maaan on 19 May 2010 15:28 unruh wrote: > On 2010-05-19, Ohhhh maaan <nobodyhere(a)example.com> wrote: >> I have a kernel panic and need to fix a typo. I don't have the >> install disks, and I just want to use the CD to access the shell >> prompt so I can run the commands need. I can't get to the grub boot >> loader screen. >> >> Anyway, I run this and it asks for linux or linux text, and no matter >> what I do, I can't just have it load the kernel image from the rescue >> CD and drop into shell. It always wants to install and asks for the >> images. How in the world can someone just drop into a shell prompt? >> >> I've used Linux years ago and I think I recall you could just type >> linux single or linux emergency at the boot CD, but nothing works >> with this new CentOS 5.x rescue CD. I'm stuck at "boot:" and nothing >> I try just drops/boots me into a shell prompt. Please, help! :) > > Did you try typing "rescue" when it is stuck at "boot:"? Yes, of course. And, it went into rescue, which is not what I want. Or, is this entire issue about some issue with the file system where it should otherwise BE dropping into shell? This is what I'm trying to figure out.
From: Ohhhh maaan on 19 May 2010 15:29 Robert Nichols wrote: > On 05/18/2010 09:58 PM, Ohhhh maaan wrote: >> I have a kernel panic and need to fix a typo. I don't have the >> install disks, and I just want to use the CD to access the shell >> prompt so I can run the commands need. I can't get to the grub boot >> loader screen. >> >> Anyway, I run this and it asks for linux or linux text, and no matter >> what I do, I can't just have it load the kernel image from the rescue >> CD and drop into shell. It always wants to install and asks for the >> images. How in the world can someone just drop into a shell prompt? >> >> I've used Linux years ago and I think I recall you could just type >> linux single or linux emergency at the boot CD, but nothing works >> with this new CentOS 5.x rescue CD. I'm stuck at "boot:" and nothing >> I try just drops/boots me into a shell prompt. Please, help! :) > > Once you get to the installer GUI, there should be a shell available > on > one of the other VTs. Try ctrl-alt-F2. > Unfortunately, the KVM doesn't allow ctrl-alt-f2, so it would just put my own Linux system I'm connecting from into shell. I'll see if there's some other option over KVM for that, or if they (or I) can add it. I'm certain shell is there and available somehow, I just don't know how to get to it.
From: Ohhhh maaan on 19 May 2010 15:30 Hans-Peter Diettrich wrote: > Ohhhh maaan schrieb: > >> I have a kernel panic and need to fix a typo. I don't have the >> install disks, and I just want to use the CD to access the shell >> prompt so I can run the commands need. I can't get to the grub boot >> loader screen. > > Can you still boot any live-CD, and apply your corrections from there? > > DoDi I may be able to, I will check. I suppose, in the meantime, that the rescue CD is intended for a specific purpose then and it's not something you can drop into shell from (at least without physical console access or going through some rescue mode steps)?
From: Gernot Fink on 19 May 2010 16:50 In article <i%WIn.16205$TL5.12659(a)newsfe24.iad>, Ohhhh maaan <nobodyhere(a)example.com> writes: > Hans-Peter Diettrich wrote: > >> Ohhhh maaan schrieb: >> >>> I have a kernel panic and need to fix a typo. I don't have the >>> install disks, and I just want to use the CD to access the shell >>> prompt so I can run the commands need. I can't get to the grub boot >>> loader screen. >> >> Can you still boot any live-CD, and apply your corrections from there? >> >> DoDi > > I may be able to, I will check. I suppose, in the meantime, that the > rescue CD is intended for a specific purpose then and it's not > something you can drop into shell from (at least without physical > console access or going through some rescue mode steps)? try PLD-rescuecd(50MB) or systemrescuecd(200MB). Both are gerneral rich featured shellbased RescueCDs. -- MFG Gernot
From: Ohhhh maaan on 19 May 2010 16:59
Gernot Fink wrote: > In article <i%WIn.16205$TL5.12659(a)newsfe24.iad>, > Ohhhh maaan <nobodyhere(a)example.com> writes: >> Hans-Peter Diettrich wrote: >> >>> Ohhhh maaan schrieb: >>> >>>> I have a kernel panic and need to fix a typo. I don't have the >>>> install disks, and I just want to use the CD to access the shell >>>> prompt so I can run the commands need. I can't get to the grub boot >>>> loader screen. >>> >>> Can you still boot any live-CD, and apply your corrections from >>> there? >>> >>> DoDi >> >> I may be able to, I will check. I suppose, in the meantime, that the >> rescue CD is intended for a specific purpose then and it's not >> something you can drop into shell from (at least without physical >> console access or going through some rescue mode steps)? > > try PLD-rescuecd(50MB) or systemrescuecd(200MB). Both are gerneral > rich featured shellbased RescueCDs. > I appreciate the suggestion, but the data center only has on hand what they have and I didn't want to make a big deal about it with them, and I don't need anything beyond the very basic. I was just wondering if someone can use a rescue CD in the same manner you'd be able to use a Live CD. I didn't want to have to ask them to swap it out (if they even have it on hand) if I could have just dropped into shell from the rescue CD. I suppose this answers my question though, there is no way to do this it seems (or no one seems to know)... unless there's something unique happening with this file system, I suppose. Regardless, I've made a mental note about the shell based rescue CD's, which could come in handy (I can't stand remote GUI interfaces over KVM anyway). |